package homework_02.home_04;
import java.util.*;
public class HomeWork_04 {
    public static void main(String[] args) {
        System.out.println("请输入大写字母：");
        Scanner input = new Scanner(System.in);

        String aa= input.next();
        char a= aa.charAt(0);
        int b;
        b = (int)a+32;
        a=(char)b;
        System.out.println(a);
    }
}
